Global Positioning System (GPS) Accuracies in Eastern U.S. Deciduous and Conifer Forests
Authors: Deckert, Christopher J.; Bolstad, Paul V.
Source: Southern Journal of Applied Forestry, Volume 20, Number 2, 1 May 1996 , pp. 81-84(4)
Publisher: Society of American Foresters
Abstract:This study determined horizontal positional errors when using C/A code GPS receivers under forest canopies and in varied terrain. Positional errors were evaluated for a total of 18 sites: three sites for each of six combinations of canopy (conifer, hardwood) and terrain (ridge, slope, valley). Ten replicates were collected at each site for each of 60, 200, and 500 position fixes. Differentially corrected positional accuracies from conifer sites averaged 18.4 ft, which was significantly greater than the 14.5 ft observed for hardwood sites. For differentially corrected data, positional errors generally increased from ridgetop to valley positions. - Errors decreased when the number of position fixes was increased. South. J. Appl. For. 20(2):81-84.
Document Type: Journal Article
Affiliations: Virginia Polytechnic Institute and State University, College of Forestry and Wildlife Resources, Blacksburg, Virginia 24060-0324
Publication date: May 1, 1996
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